Method TestSubstrUTF8

util/charset/wide_ut.cpp:609–615

}

void TConversionTest::TestSubstrUTF8() {
    TStringBuf utextBuf(utext, sizeof(utext));
    UNIT_ASSERT(SubstrUTF8(utextBuf, 0, 2) == utextBuf.substr(0, 4));
    UNIT_ASSERT(SubstrUTF8(utextBuf, 1, 1) == utextBuf.substr(2, 2));
    UNIT_ASSERT(SubstrUTF8(utextBuf, 1, 2) == utextBuf.substr(2, 4));
    UNIT_ASSERT(SubstrUTF8(utextBuf, 1, 3) == utextBuf.substr(2, 6));
}

inline bool MustBeSurrogate(wchar32 ch) {
    return ch > 0xFFFF;